EN
The paper studies organizational niches and also network niches around nodes embedded to the n-dimensional social space (Blau-space). Dimension change, a shift in the number of descriptors of the social domain influences niches in many ways. It alters the optimal niche size. It affects the chances of niche overlap, and so, competition intensity. Dimension change can also open new, unoccupied spots in spaces already 'tightly packed' with niches, thus facilitating organizational entry or the establishment of additional network nodes.